install script

install.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Ensure we have root privileges before touching system paths.
+if [[ "${EUID:-$(id -u)}" -ne 0 ]]; then
+  exec sudo -E "$0" "$@"
+fi
+
+script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
+
+# Resolve the active GRUB theme's icons directory from user.cfg.
+find_icons_dir() {
+  local theme_line theme_dir
+  theme_line="$(awk -F= '/set[[:space:]]+theme=/ {print $2; exit}' /boot/grub2/user.cfg 2>/dev/null | tr -d '"' || true)"
+  [[ -n "$theme_line" ]] || return 1
+  theme_dir="${theme_line%/*}"
+  echo "${theme_dir}/icons"
+}
+
+icons_dir="$(find_icons_dir || true)"
+
+# Abort if we cannot locate the theme icons directory.
+if [[ -z "$icons_dir" || ! -d "$icons_dir" ]]; then
+  echo "Could not find GRUB theme icons directory. Ensure /boot/grub2/user.cfg contains a theme= entry." >&2
+  exit 1
+fi
+
+# Drop the Bluefin icon into the active theme.
+echo "Copying Bluefin icon to ${icons_dir}"
+install -m 644 -D "${script_dir}/bluefin.png" "${icons_dir}/bluefin.png"
+
+# Install the helper that ensures grub_class bluefin exists.
+echo "Installing helper script to /usr/local/sbin"
+install -m 755 "${script_dir}/bls-add-bluefin.sh" /usr/local/sbin/bls-add-bluefin.sh
+
+# Add the rpm-ostree hook and reload systemd.
+echo "Installing systemd drop-in for rpm-ostree hook"
+install -m 644 -D "${script_dir}/bluefin-icons.conf" /etc/systemd/system/ostree-finalize-staged.service.d/bluefin-icons.conf
+systemctl daemon-reload
+
+# Immediately apply the Bluefin class to existing BLS entries.
+echo "Applying grub_class bluefin to existing BLS entries"
+/usr/local/sbin/bls-add-bluefin.sh
+
+# Report completion.
+echo "Done. New deployments will keep the Bluefin GRUB icon."

readme.md

@@ -16,50 +16,21 @@ This setup borrows the icon for the Bluefin GRUB [theme created by Raindrac](htt
 
 ## Installation
 
-If you don't have a GRUB theme installed, [check these out](https://www.gnome-look.org/browse?cat=109&ord=latest). I am currently using [this one](https://www.gnome-look.org/p/2227016).
+If you don't have a GRUB theme installed, [check these out](https://www.gnome-look.org/browse?cat=109&ord=latest). I am currently using [this one](https://www.gnome-look.org/p/2227016). The installer expects `/boot/grub2/user.cfg` to contain a `set theme=/boot/grub2/themes/<theme>/<file>.txt` entry so it can locate the theme's `icons` folder.
 
-### 1. Find the icons folder of your currently used GRUB theme
+1) Run the installer from the repo root (it will sudo itself):
 
 ```bash
-sudo awk -F= '/set theme=/ {f=$2; sub(/\/[^/]*$/, "", f); print f "/icons"}' /boot/grub2/user.cfg
+./install.sh
 ```
 
-should print something like `"/boot/grub2/themes/<theme>/icons`
+What it does:
+- Reads your active theme path from `/boot/grub2/user.cfg` and copies `bluefin.png` into its `icons/` directory.
+- Installs `bls-add-bluefin.sh` to `/usr/local/sbin/` and the rpm-ostree drop-in to `/etc/systemd/system/ostree-finalize-staged.service.d/bluefin-icons.conf`.
+- Reloads systemd and immediately applies `grub_class bluefin` to existing BLS entries so icons show up right away.
 
-### 2. Copy bluefin icon to that folder
+2) (Optional) Verify:
 
 ```bash
-sudo cp bluefin.png /boot/grub2/themes/<theme>/icons/
-```
-
-### 3. Install helper script
-
-```bash
-sudo cp bls-add-bluefin.sh /usr/local/sbin/
-sudo chmod 755 /usr/local/sbin/bls-add-bluefin.sh
-```
-
-### 4. Install rpm-ostree hook
-
-```bash
-sudo mkdir -p /etc/systemd/system/ostree-finalize-staged.service.d
-sudo cp bluefin-icons.conf /etc/systemd/system/ostree-finalize-staged.service.d/
-sudo systemctl daemon-reload
-```
-
-### 5. (Optional) Test helper script
-
-```bash
-sudo /usr/local/sbin/bls-add-bluefin.sh
 grep -n '^grub_class' /boot/loader/entries/ostree*.conf
-
-# Expected Result
-
-/boot/loader/entries/ostree-1.conf
-     2:	grub_class bluefin
-
-/boot/loader/entries/ostree-2.conf
-     2:	grub_class bluefin
-
 ```
-